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Pyrgulina
''Pyrgulina'' is a small genus of very small sea snails, pyramidellid gastropod mollusks or micromollusks. This genus is currently placed in the subfamily Chrysallidinae of the family Odostomiidae.Bouchet, P. (2011). Pyrgulina A. Adams, 1864. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=236150 on 2011-11-28 General description The whorls of the teleoconch are sculptured similarly throughout. Varices are absent. The shell is marked with strong axial ribs which extend from the summit to the umbilical area The spiral markings consist of impressed lines. The fine, incised spiral striations are subequally spaced and present at the intercostal spaces between the sutures and on the base of the whorls. Species Species within the genus ''Pyrgulina'' include: * ''Pyrgulina adducta'' Peñas & Rolán, 2017 * ''Pyrgulina affinis'' Laseron, 1959 * ''Pyrgulina altiminima'' Peñas & Rolán, 2017 * ''Pyrgulina alveata'' (A. Adams ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pyrgulina Affinis
''Pyrgulina'' is a small genus of very small sea snails, pyramidellid gastropod mollusks or micromollusks. This genus is currently placed in the subfamily Chrysallidinae of the family Odostomiidae.Bouchet, P. (2011). Pyrgulina A. Adams, 1864. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=236150 on 2011-11-28 General description The whorls of the teleoconch are sculptured similarly throughout. Varices are absent. The shell is marked with strong axial ribs which extend from the summit to the umbilical area The spiral markings consist of impressed lines. The fine, incised spiral striations are subequally spaced and present at the intercostal spaces between the sutures and on the base of the whorls. Species Species within the genus ''Pyrgulina'' include: * '' Pyrgulina adducta'' Peñas & Rolán, 2017 * '' Pyrgulina affinis'' Laseron, 1959 * '' Pyrgulina altiminima'' Peñas & Rolán, 2017 * '' Pyrgulina alveata'' (A. Ada ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pyrgulina Arfica
''Pyrgulina arfica'' is a species of sea snail, a marine gastropod mollusk in the family Pyramidellidae, the pyrams and their allies.Rosenberg, G. (2011). ''Pyrgulina arfica'' (Bartsch, 1915). Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=588500 on 2012-01-12 Description The bluish-white, rather solid shell has an elongate-ovate shape. Its length measures 4 mm. The whorls of the protoconch are decollated. The five whorls of the teleoconch are well rounded, and strongly shouldered at the summit. They are marked by stout, well-rounded, somewhat sinuous, decidedly protractive, axial ribs, which are about as wide as the spaces that separate them. Of these ribs, 14 occur upon the first, 16 upon the second, 18 upon the third, and 22 upon the penultimate turn. These ribs render the summit of the whorls decidedly crenulated. In addition to the ribs the intercostal spaces are marked between the sutures by exceedingly fi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |